Photoluminescence of SnO₂ nanoparticles embedded in Al₂O₃

Journal Article · Fri Nov 21 04:00:00 EST 2008 · Journal of Physics D. Applied Physics, 41(22):225102

DOI:https://doi.org/10.1088/0022-3727/41/22/225102· OSTI ID:947049

Xiang, Xia; Zu, Xiaotao T; Zhu, Sha; Wang, L M; Shutthanandan, V; Nachimuthu, Ponnusamy; Zhang, Yanwen

Tetragonal Sn nanoparticles of ~15 nm diameter are produced in Al₂O₃ by direct Sn implantation at room temperature. After thermal annealing at 1000 ºC in oxygen, the implantation-induced amorphous region recrystallized and the Sn nanoparticles turned into SnO₂ nanoparticles with an average diameter of ~30 nm as revealed by transmission electron microscopy. While no absorption and photoluminescence (PL) are observed from the metallic Sn nanoparticles, SnO₂ nanoparticles exhibit an absorption edge at ~280 nm and three emission bands at 410 nm, 520 nm and 700 nm, respectively. In addition to the previously reported blue and green emission from SnO2 nanostructures, a red PL band was observed due to the unique surface state of SnO₂ nanoparticles embedded in Al₂O₃ substrate fabricated by ion implantation.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 947049
• Report Number(s): PNNL-SA-63447; 25590; KP1504020
• Journal Information: Journal of Physics D. Applied Physics, 41(22):225102, Journal Name: Journal of Physics D. Applied Physics, 41(22):225102 Journal Issue: 22 Vol. 41
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION
ANNEALING
Environmental Molecular Sciences Laboratory
ION IMPLANTATION
NANOSTRUCTURES
OXYGEN
PHOTOLUMINESCENCE
Photoluminescence
SUBSTRATES
TRANSMISSION ELECTRON MICROSCOPY
nanoparticles